In Windows, if you right-click on any file ending in. Old-fashioned TrueType fonts would say TrueType here, but more likely you’re seeing OpenType TrueType. To verify this in macOS, open FontBook and examine a font with a. TTF file ending that has misled many into thinking that they’re old-fashioned TrueType fonts. OTF And there is TrueType-flavor OpenType, Microsoft’s choice, ending with. There is PostScript-flavor OpenType, favored by Adobe and ending with.
Almost all modern professional fonts are OpenType format.
Most of what you see on the internet comparing font formats is wrong.